export interface ContractGroupLike {
    pubKey: string;
    signature: string;
}
export interface ContractGroupJson {
    pubkey: string;
    /** base64-encoded */
    signature: string;
}
export declare class ContractGroup {
    pubKey: string;
    signature: string;
    static fromJson(json: ContractGroupJson): ContractGroup;
    constructor(obj: Partial<ContractGroupLike>);
    toJson(): ContractGroupJson;
    export(): ContractGroupLike;
}
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